You can see though even with such a simple method with heaps of turnover, you get tantalisingly close to a profit. So work on few filters and see what happens, firstly back all MR & SR selections @ BOB (Luxbet; when available) otherwise all runners quoted at less than $4.01c @ TF.

Secondly start looking at that LSW, i.e. was it a soft win, same distance, Metro win, same conditions, Jockey, weight change etc etc